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González-Arias J, Torres-Sempere G, Arroyo-Torralvo F, Reina TR, Odriozola JA. Optimizing biogas methanation over nickel supported on ceria-alumina catalyst: Towards CO 2-rich biomass utilization for a negative emissions society. ENVIRONMENTAL RESEARCH 2024; 242:117735. [PMID: 38000630 DOI: 10.1016/j.envres.2023.117735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 11/11/2023] [Accepted: 11/17/2023] [Indexed: 11/26/2023]
Abstract
Biogas methanation emerges as a prominent technology for converting biogas into biomethane in a single step. Furthermore, this technology can be implemented at biogas plant locations, supporting local economies and reducing dependence on large energy producers. However, there is a lack of comprehensive studies on biogas methanation, particularly regarding the technical optimization of operational parameters and the profitability analysis of the overall process. To address this gap, our study represents a seminal work on the technical optimization of biogas methanation obtaining an empirical model to predict the performance of biogas methanation. We investigate the influence of operational parameters, such as reaction temperature, H2/CO2 ratio, space velocity, and CO2 share in the biogas stream through an experimental design. Based on previous research we selected a nickel supported on ceria-alumina catalyst; being nickel a benchmark system for methanation process such selection permits a reliable data extrapolation to commercial units. We showcase the remarkable impact of studied key operation parameters, being the temperature, the most critical factor affecting the reaction performance (ca. 2 to 5 times higher than the second most influencing parameter). The impact of the H2/CO2 ratio is also noticeable. The response surfaces and contour maps suggest that a temperature between 350 and 450 °C and an H2/CO2 ratio between 2.5 and 3.2 optimize the reaction performance. Further experimental tests were performed for model validation and optimization leading to a reliable predictive model. Overall, this study provides validated equations for technology scaling-up and techno-economic analysis, thus representing a step ahead towards real-world applications for bio-methane production.
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Affiliation(s)
- J González-Arias
- Inorganic Chemistry Department and Materials Sciences Institute, University of Seville-CSIC, Seville, Spain.
| | - G Torres-Sempere
- Inorganic Chemistry Department and Materials Sciences Institute, University of Seville-CSIC, Seville, Spain
| | - F Arroyo-Torralvo
- Chemical and Environmental Engineering Department, Technical School of Engineering, University of Seville, C/ Camino de los Descubrimientos s/n, Sevilla, 41092, Spain
| | - T R Reina
- Inorganic Chemistry Department and Materials Sciences Institute, University of Seville-CSIC, Seville, Spain
| | - J A Odriozola
- Inorganic Chemistry Department and Materials Sciences Institute, University of Seville-CSIC, Seville, Spain
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Awan IZ, Ho PH, Beltrami G, Fraisse B, Cacciaguerra T, Gaudin P, Tanchoux N, Albonetti S, Martucci A, Cavani F, Di Renzo F, Tichit D. Composition Effect on the Formation of Oxide Phases by Thermal Decomposition of CuNiM(III) Layered Double Hydroxides with M(III) = Al, Fe. MATERIALS (BASEL, SWITZERLAND) 2023; 17:83. [PMID: 38203936 PMCID: PMC10779612 DOI: 10.3390/ma17010083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/17/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024]
Abstract
The thermal decomposition processes of coprecipitated Cu-Ni-Al and Cu-Ni-Fe hydroxides and the formation of the mixed oxide phases were followed by thermogravimetry and derivative thermogravimetry analysis (TG - DTG) and in situ X-ray diffraction (XRD) in a temperature range from 25 to 800 °C. The as-prepared samples exhibited layered double hydroxide (LDH) with a rhombohedral structure for the Ni-richer Al- and Fe-bearing LDHs and a monoclinic structure for the CuAl LDH. Direct precipitation of CuO was also observed for the Cu-richest Fe-bearing samples. After the collapse of the LDHs, dehydration, dehydroxylation, and decarbonation occurred with an overlapping of these events to an extent, depending on the structure and composition, being more pronounced for the Fe-bearing rhombohedral LDHs and the monoclinic LDH. The Fe-bearing amorphous phases showed higher reactivity than the Al-bearing ones toward the crystallization of the mixed oxide phases. This reactivity was improved as the amount of embedded divalent cations increased. Moreover, the influence of copper was effective at a lower content than that of nickel.
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Affiliation(s)
- Iqra Zubair Awan
- ICGM, University Montpellier, CNRS, ENSCM, 1919 Route de Mende, 34090 Montpellier, France; (I.Z.A.); (P.H.H.); (B.F.); (T.C.); (P.G.); (N.T.); (F.D.R.)
- Department of Industrial Chemistry “Toso Montanari”, Alma Mater Studiorum-Università di Bologna, Viale Risorgimento 4, 40136 Bologna, Italy; (S.A.); (F.C.)
- Department Chemistry, Lahore Garrison University, Lahore 54000, Pakistan
| | - Phuoc Hoang Ho
- ICGM, University Montpellier, CNRS, ENSCM, 1919 Route de Mende, 34090 Montpellier, France; (I.Z.A.); (P.H.H.); (B.F.); (T.C.); (P.G.); (N.T.); (F.D.R.)
- Chemical Engineering, Competence Centre for Catalysis, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
| | - Giada Beltrami
- Department Physics and Earth Sciences, University of Ferrara, Via Saragat 1, 44100 Ferrara, Italy; (G.B.); (A.M.)
| | - Bernard Fraisse
- ICGM, University Montpellier, CNRS, ENSCM, 1919 Route de Mende, 34090 Montpellier, France; (I.Z.A.); (P.H.H.); (B.F.); (T.C.); (P.G.); (N.T.); (F.D.R.)
| | - Thomas Cacciaguerra
- ICGM, University Montpellier, CNRS, ENSCM, 1919 Route de Mende, 34090 Montpellier, France; (I.Z.A.); (P.H.H.); (B.F.); (T.C.); (P.G.); (N.T.); (F.D.R.)
| | - Pierrick Gaudin
- ICGM, University Montpellier, CNRS, ENSCM, 1919 Route de Mende, 34090 Montpellier, France; (I.Z.A.); (P.H.H.); (B.F.); (T.C.); (P.G.); (N.T.); (F.D.R.)
| | - Nathalie Tanchoux
- ICGM, University Montpellier, CNRS, ENSCM, 1919 Route de Mende, 34090 Montpellier, France; (I.Z.A.); (P.H.H.); (B.F.); (T.C.); (P.G.); (N.T.); (F.D.R.)
| | - Stefania Albonetti
- Department of Industrial Chemistry “Toso Montanari”, Alma Mater Studiorum-Università di Bologna, Viale Risorgimento 4, 40136 Bologna, Italy; (S.A.); (F.C.)
- Center for Chemical Catalysis—C3, Alma Mater Studiorum-Università di Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
| | - Annalisa Martucci
- Department Physics and Earth Sciences, University of Ferrara, Via Saragat 1, 44100 Ferrara, Italy; (G.B.); (A.M.)
| | - Fabrizio Cavani
- Department of Industrial Chemistry “Toso Montanari”, Alma Mater Studiorum-Università di Bologna, Viale Risorgimento 4, 40136 Bologna, Italy; (S.A.); (F.C.)
- Center for Chemical Catalysis—C3, Alma Mater Studiorum-Università di Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
| | - Francesco Di Renzo
- ICGM, University Montpellier, CNRS, ENSCM, 1919 Route de Mende, 34090 Montpellier, France; (I.Z.A.); (P.H.H.); (B.F.); (T.C.); (P.G.); (N.T.); (F.D.R.)
| | - Didier Tichit
- ICGM, University Montpellier, CNRS, ENSCM, 1919 Route de Mende, 34090 Montpellier, France; (I.Z.A.); (P.H.H.); (B.F.); (T.C.); (P.G.); (N.T.); (F.D.R.)
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Wu HY, Qin YY, Xiao YH, Chen JS, Ye R, Guo R, Yao YG. Boosting Activity and Selectivity of UiO-66 through Acidity/Alkalinity Functionalization in Dimethyl Carbonate Catalysis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2208238. [PMID: 36734211 DOI: 10.1002/smll.202208238] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/13/2023] [Indexed: 05/04/2023]
Abstract
The acid-base properties of supports have an enormous impact on catalytic reactions to regulate the selectivity and activity of supported catalysts. Herein, a train of Pd-X-UiO-66 (X = NO2 , NH2 , and CH3 ) catalysts with different acidity/alkalinity functional groups and encapsulated Pd(II) species is first developed, whose activities in dimethyl carbonate (DMC) catalysis are then investigated in details. Thereinto, the Pd-NO2 -UiO-66 catalyst with acidity functionalization exhibits the best catalytic behavior: the DMC selectivity stemmed from methyl nitrite (MN) is up to 68%, the conversion of CO is 73.4%. The obtained experimental results demonstrate that the NO2 group not only affected the interaction between X-UiO-66 and Pd(II) active sites but also play an indispensable role in the adsorption and activation of MN and CO, which remarkably promote the formation of the COOCH3 * intermediate and DMC product.
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Affiliation(s)
- Han-Ying Wu
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ye-Yan Qin
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
| | - Yi-Hong Xiao
- College of Environmental and Biological Engineering, Putian University, Putian, 351100, P. R. China
| | - Jian-Shan Chen
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
| | - Runping Ye
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, P. R. China
| | - Rong Guo
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
| | - Yuan-Gen Yao
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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